Fire Resistant FR Grade Conveyor Belt
High-Performance, Durable FR Grade by Hilflex®
HILFLEX® Fire Resistant (FR) Conveyor Belts
Engineered for Safety in Hazardous Environments
Protect Your Operations. Prevent Fire Spread.
The HILFLEX® Fire Resistant Conveyor Belts are meticulously engineered to safeguard your operations in environments where fire hazards are a serious concern. These belts are not just heat-tolerant—they are scientifically formulated to resist ignition, self-extinguish, and prevent flame propagation, making them essential in industries handling combustible materials, flammable gases, or explosive dust.
Whether you’re operating in underground coal mines, thermal power plants, or chemical zones, HILFLEX® FR belts act as a crucial line of defense—protecting both your workforce and your machinery.
🔥 Designed for Flame Retardancy & Anti-Static Safety
Each belt is crafted from flame-retardant rubber compounds enhanced with anti-static agents. These specialized materials deliver:
- Ignition Resistance: Far less likely to ignite, even under open flame conditions.
- Self-Extinguishing Behavior: In case of ignition, the flame quickly dies out after the source is removed—halting fire spread.
- Anti-Static (FRAS) Compliance: Disperses static charge buildup, preventing accidental ignition from sparks.
- Electrically Safe: Meets stringent electrical resistance norms (≤ 3.0 × 10⁸ Ohms).
All belts conform to leading international safety benchmarks, including IS 1891 (Part V):1993, ISO 340, IS 3181, DIN 22102 K/S, and CAN/CSA-M422-M87.
🛡️ Engineered for Reliability in High-Risk Zones
Beyond fire protection, HILFLEX® FR belts are designed to withstand rigorous industrial conditions:
- High-Tensile EP/NN Carcass: Delivers exceptional strength, reduced elongation, and structural integrity.
- Superior Interlayer Bonding: Prevents ply separation and ensures long service life.
- Abrasion-Resistant Rubber Covers: Withstand continuous contact with tough, abrasive materials.
- Optimized Flexibility: Ensures smooth travel over pulleys and rollers without buckling or cracking.
✅ Key Advantages of HILFLEX® FR Belts
- 🔒 Minimizes Fire Hazards: Reduces fire risks in volatile environments.
- 🧯 Meets Global Safety Standards: IS, ISO, DIN, CAN/CSA certifications.
- ⚡ Eliminates Static Spark Threats: Essential in grain, coal, and chemical zones.
- 🏗️ Reliable Under Load: Performs consistently in continuous operations.
- 💰 Cost-Efficient Safety: Minimizes downtime, fire damage, and replacement costs.
🏭 Recommended Applications
HILFLEX® FR belts are trusted across industries where fire prevention is mission-critical:
- Underground & Surface Coal Mines
- Thermal Power Plants (coal/ash/fly ash handling)
- Steel & Foundries (coke, sinter, castings)
- Grain Silos & Agro Processing
- Chemical & Fertilizer Plants
- Biomass, Wood, Pulp & Paper Units
📐 Technical Specifications
Specification | Details |
Carcass Type | EP / Nylon (2–6 Ply), Solid Woven (on request) |
Cover Grades | Fire Resistant (FR), Fire Resistant Anti-Static (FRAS) |
Standards Complied | IS 1891 Part V, ISO 340, IS 3181, DIN 22102, CAN/CSA-M422-M87 |
Tensile Strength | ≥ 17 MPa (Rubber Cover) |
Elongation at Break | ≥ 350% |
Abrasion Loss | ≤ 175–200 mm³ (DIN 53516) |
Electrical Resistance | ≤ 3.0 × 10⁸ Ohms |
Flame Retardancy | Self-extinguishing; flame duration < 15 sec (ISO 340 compliant) |
Drum Friction Test | No flame/spark/glow; drum temp ≤ 325°C within 3 hours (IS 1891) |
Width Range | 300–2400 mm (custom sizes available) |
Cover Thickness | Top: 3–8 mm / Bottom: 1.5–4 mm |
Ambient Operating Temp | –30°C to +70°C (not for hot material contact) |
🔍 Fire Resistant vs. Heat Resistant Belts – Key Differences
Aspect | Fire Resistant (FR) | Heat Resistant (HR) |
Primary Purpose | Prevent ignition and flame spread | Withstand high material temperatures |
Self-Extinguishing | ✅ Yes | ❌ No |
Anti-Static (FRAS) | ✅ Often included | ❌ Not standard |
Material Contact Temp | Ambient to ~70°C | HR1 (100°C), HR2 (150°C), SHR (180°C), UHR (250°C) |
Best Use | Explosive environments, flammable material handling | Hot clinker, sinter, cement, ash handling |
🔴 Important: FR belts are not meant for continuous hot material exposure. HR belts do not prevent fire ignition. Choose the right type based on your hazard risk.
➕ Also Available: Cleated Chevron FR Belts
For operations involving steep inclines and fire risk, we offer Chevron Profiled FR Conveyor Belts:
- ✔️ Chevron Profile: Improves grip and prevents material rollback on inclined conveyors
- ✔️ Fire Retardant Rubber Compound: Same FR/FRAS protection in cleated belts
- ✔️ Custom Cleat Patterns: V-profile, multi-chevron, height-adjustable options
- ✔️ Ideal For: Coal handling, fertilizer plants, biomass fuel, grain elevators
📩 Request a Quote or Product Consultation
To help us recommend the right FR belt, please share:
- Your industry and conveying material
- Required belt width, ply, cover thickness
- Applicable fire safety standards (IS/ISO/MSHA etc.)
- Ambient working conditions and conveying length
- Whether chevron/cleated profile is needed
👉 Our team will quickly provide a customized technical offer, complete with specifications, drawings, and best pricing.
HILFLEX® Fire Resistant Series
Certified. Tested. Trusted.
Built for the highest level of safety and performance.